Set the measuring clock to zero and go up 12 mm.

设置测量时钟为零，到了12毫米。

youdao

Water clock: or clepsydra, Ancient device for measuring time by the gradual flow of water.

水钟，亦称漏壶，利用水的流动计时的古代时钟。

youdao

Water clock: or clepsydra, Ancient device for measuring time by the gradual flow of water.

水钟，亦称漏壶，利用水的流动计时的古代时钟。

youdao